#include <hd_oled.h>
#include <pd_gpio.h>
#include <pd_i2c_hd.h>
#include <hd_oled_protocol_i2c.h>
#include <delay.h>
#include <pd_usart.h>
#include "main.h"


#define ARRAY_SIZE(x)       sizeof(x) / sizeof(x[0])
#define USE_HARDWARE_SPI    1
#define USE_HARDWARE_I2C    1
OLED oled;
USART usart;

extern void SystemClock_Config(void);

void oled_instance(OLED *oled);


int main(void) {

    SystemClock_Config();

    NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_2);

    oled_instance(&oled);

    OLED_printf(&oled, 0, 0, "Sleep Mode");
    OLED_printf(&oled, 0, 16, "RxData:");
    OLED_refresh(&oled);

    GPIO usartGPIO[2];
    GPIO_constructor(usartGPIO + 0, GPIOA, LL_GPIO_PIN_9);
    GPIO_constructor(usartGPIO + 1, GPIOA, LL_GPIO_PIN_10);

    GPIOList uartGPIOList;
    GPIOList_constructor(&uartGPIOList, usartGPIO, 2);

    USART_constructor(&usart, USART1, &uartGPIOList, 9600);
    USART_init(&usart, USART1_IRQn, 1, 1);

    uint8_t RxData;
    while (1) {
        if (USART_getRxFlag(&usart) == 1) {
            RxData = usart.rxData;
            usart.vptr->send_byte(&usart, RxData);
            OLED_printf(&oled, 64, 16, "%c", RxData);
            OLED_refresh(&oled);
        }

        OLED_printf(&oled, 0, 32, "Running");
        OLED_refresh(&oled);
        delay_ms(1000);

        OLED_printf(&oled, 0, 32, "       ");
        OLED_refresh(&oled);
        delay_ms(1000);

        OLED_printf(&oled, 64, 16, "    ");
        OLED_refresh(&oled);

#define LPR 1
#ifdef MR
        // Main Regulator
        LL_PWR_SetPowerMode(LL_PWR_MODE_STOP_MAINREGU);
#elif LPR
        // Low-power Regulator
        LL_PWR_SetPowerMode(LL_PWR_MODE_STOP_LPREGU);
#endif
        __WFI();
    }

}

void USART1_IRQHandler(void) {
    usart.rxData = LL_USART_ReceiveData8(usart.USARTx);
    usart.rxFlag = 1;
}


void oled_instance(OLED *oled) {
    // I2C gpio init
    static GPIO oledSckGPIO, oledSdaGPIO;
    GPIO_constructor(&oledSckGPIO, GPIOB, LL_GPIO_PIN_10); // I2Cx_SCK
    GPIO_constructor(&oledSdaGPIO, GPIOB, LL_GPIO_PIN_11); // I2Cx_SDA

#ifdef USE_HARDWARE_I2C
    static I2CHardware i2c2;
    I2CHardware_constructor(&i2c2, I2C2, &oledSckGPIO, &oledSdaGPIO);
#elif USE_SIMULATE_I2C
    static I2CSimulate i2c2;
    I2CSimulate_constructor(&i2c2, &oledSckGPIO, &oledSdaGPIO);
#endif
    I2C_init((I2C *) &i2c2);

    // OLED protocol of I2C
    static OLEDProtocolI2C oledProtocolI2c;
    OLEDProtocolI2C_constructor(&oledProtocolI2c, (I2C *) &i2c2);

    // OLED font instance.
    static OLEDFont oledFont;
    OLEDFont_contructor(&oledFont, NULL);

    // OLED instance of 4-PIN(I2C)
    OLED_constructor(oled, (OLEDProtocol *) &oledProtocolI2c, &oledFont);

    OLED_init(oled);

    OLED_clear(oled);
    OLED_refresh(oled);
}

